diff -Nru intltool-0.51.0/debian/changelog intltool-0.51.0/debian/changelog
--- intltool-0.51.0/debian/changelog	2017-07-23 18:33:10.000000000 +0300
+++ intltool-0.51.0/debian/changelog	2017-12-04 17:21:57.000000000 +0300
@@ -1,3 +1,11 @@
+intltool (0.51.0-5) UNRELEASED; urgency=medium
+
+  * no-guess-builddir.patch: new patch by Aleksander Morgado.
+    Fixes build of various projects when builddir is not the same
+    as srcdir (e.g. when running make distcheck). (LP: #1117944)
+
+ -- Vlad Orlov <monsta@inbox.ru>  Mon, 04 Dec 2017 17:21:57 +0300
+
 intltool (0.51.0-4) unstable; urgency=medium
 
   [ gregor herrmann ]
diff -Nru intltool-0.51.0/debian/patches/no-guess-builddir.patch intltool-0.51.0/debian/patches/no-guess-builddir.patch
--- intltool-0.51.0/debian/patches/no-guess-builddir.patch	1970-01-01 03:00:00.000000000 +0300
+++ intltool-0.51.0/debian/patches/no-guess-builddir.patch	2017-12-04 17:21:57.000000000 +0300
@@ -0,0 +1,34 @@
+Patch by Aleksander Morgado
+https://bugs.launchpad.net/intltool/+bug/1117944
+
+Index: intltool-0.51.0/intltool-update.in
+===================================================================
+--- intltool-0.51.0.orig/intltool-update.in
++++ intltool-0.51.0/intltool-update.in
+@@ -620,6 +620,14 @@ sub FindLeftoutFiles
+ 
+     my @result;
+ 
++    # If the builddir is a subdir of srcdir, the list of files found will be prefixed with
++    # an additional prefix (e.g. "_build/sub" for automake 1.15 make distcheck). Try to
++    # handle that, by removing those matches as well.
++    my $absbuilddir = Cwd::abs_path("..\/");
++    my $abssrcdir = Cwd::abs_path("$SRCDIR/..");
++    # Check if builddir is a subdir of srcdir
++    my ($abspath,$relpath) = split /\s*$abssrcdir\/\s*/, $absbuilddir, 2;
++
+     foreach (@buf_allfiles_sorted)
+     {
+         my $dummy = $_;
+@@ -628,7 +636,10 @@ sub FindLeftoutFiles
+         $srcdir =~ s#^../##;
+         $dummy =~ s#^$srcdir/../##;
+         $dummy =~ s#^$srcdir/##;
+-        $dummy =~ s#_build/##;
++        if ($relpath)
++        {
++            $dummy =~ s#^$relpath/##;
++        }
+ 	if (!exists($in2{$dummy}))
+ 	{
+ 	    push @result, $dummy
diff -Nru intltool-0.51.0/debian/patches/series intltool-0.51.0/debian/patches/series
--- intltool-0.51.0/debian/patches/series	2017-07-23 18:24:33.000000000 +0300
+++ intltool-0.51.0/debian/patches/series	2017-12-04 17:21:57.000000000 +0300
@@ -1 +1,2 @@
 perl5.26-regex-fixes.patch
+no-guess-builddir.patch